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CRY3408 Pressure-field Microphone, 1/4",Prepolarized high-level,0.14 mV/Pa
The CRY3408 is a 1/4" pressure-field prepolarized measurement microphone specifically designed for high sound pressure level (SPL) acoustic measurements.
The CRY3408 is capable of performing acoustic measurements at sound pressure levels of up to 180 dB SPL. It is ideal for industrial blasting, impulsive noise, and other extremely high-SPL applications.
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Product Highlights
CRY3408 Measurement Microphone Typical Frequency Response
The graph (right) shows the frequency response curves obtained using the electrostatic excitation method.
Technical Specifications
Field Type
Pressure-field
Sensitivity
0.14 mV/Pa, -77±3 dB re 1V/Pa
Frequency Response
10 Hz to 20 kHz ±2 dB
Polarization Voltage
0 V
Dynamic Range(re.20uPa)
70 dB to 180 dB
Operating Temperature
-30°C to +70°C(-22℉ to +158℉)
Temperature Stability
-0.015 dB/℃ (-10-+50℃)
Static Pressure Stability
-0.01 dB/kPa
Operating Humidity Range
0 to 90%RH no condensation
Humidity Stability
< 0.1 dB (0 to 90%RH no condensation)
Pressure Equalization Vent
Side vented
IEC 61094-4 Type
WS3P
Height with Grid
10.5 mm (0.413")
Diameter with Grid
7 mm (0.276")
Main Features
- Prepolarized high-level
- Standing up to 180 dB SPL
- It is optimized for industrial blasting and other extremely high-SPL applications.
Related Products
CRY3402 Pressure-field Microphone, 1/4" Prepolarized, 1.6mV/Pa
Field Type
Pressure-field
Noominal Sensitivity
1.6mV/Pa, -56±3dB re 1V/Pa
Frequency Response
4Hz to 70kHz±2dB
CRY3404 Pressure-field Microphone, 1/4", Prepolarized, 0.56mV/Pa
Field Type
Pressure-field
Sensitivity
0.56mV/Pa, -65±3dB re 1V/Pa
Frequency Response
10Hz to 20kHz±2dB
In acoustic measurements (SPL, frequency response, noise, reverberation, etc.), large errors often come not from instrument accuracy, but from a mismatch between the assumed sound field and the actual one. What a microphone reads as sound pressure is not strictly equivalent across different fields-especially at mid and high frequencies, where the microphone dimensions become comparable [...]
Measurement microphones are used in acoustic metrology, type-approval testing, and engineering measurements. Unlike general audio capture applications, measurement scenarios place far greater emphasis on consistency and traceability: the same microphone should deliver stable output when re-tested over time; variation within a production lot should be sufficiently small; and performance fluctuations between lots should remain controllable. [...]
A measurement microphone is not just any microphone - it is a precision acoustic sensor designed for traceable, repeatable sound pressure measurement. This guide covers how they work, the different types available, key specifications to compare, and how to select the right one for your application. What Is a Measurement Microphone? A measurement microphone is [...]
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If you are interested or have questions about our products, book a demo and we will be glad to show how it works, which solutions it can take part of and discuss how it might fit your needs and organization.